论文信息 - Design of the low-noise LC oscillator with the digital frequency tuning based on the composite resonator

Design of the low-noise LC oscillator with the digital frequency tuning based on the composite resonator

This paper presents a low phase noise differential LC oscillator with the new resonator type. The resonator architecture is an LC tank with an additional pair of serial resonators. The circuit was implemented in 0.18 \im CMOS technology and the measured phase noise reached −131.3 dBc at 3 MHz offset from a 6.776 GHz carrier with a power dissipation of 1.60 mW and the figure of merit (FOM) is −196.3 dB. The proposed area of application is the core of the local oscillator in a low-power wireless transceiver.

Keiji Yoshida | Ramesh K. Pokharel | Haruichi Kanaya | Oleg Nizhnik

[1] R.B. Staszewski,et al. A digitally controlled oscillator system for SAW-less transmitters in cellular handsets , 2006, IEEE Journal of Solid-State Circuits.

[2] Huei Wang,et al. A 5-GHz low phase noise differential colpitts CMOS VCO , 2005, IEEE Microwave and Wireless Components Letters.

[3] Bumman Kim,et al. A Low Phase Noise $LC$ VCO in 65 nm CMOS Process Using Rectangular Switching Technique , 2007, IEEE Microwave and Wireless Components Letters.

[4] Bumman Kim,et al. A low phase-noise CMOS VCO with harmonic tuned LC tank , 2006 .

[5] M. Tiebout,et al. Low-power low-phase-noise differentially tuned quadrature VCO design in standard CMOS , 2001, IEEE J. Solid State Circuits.

[6] K. O. Kenneth,et al. A packaged 1.1-GHz CMOS VCO with phase noise of -126 dBc/Hz at a 600-kHz offset , 2000, IEEE Journal of Solid-State Circuits.